Stadium: Court 2 Round: 44
| ITF Thailand F7 | 2018/10/27 02:00 | Phongsapak Kerdlaphee v Shonigmatjon Shofayziyev | 6-7,6-7 |
| ITF Thailand F5 | 2018/10/01 02:30 | Phongsapak Kerdlaphee v Chayanon Kaewsuto | 3-6,6-7 |
| ITF Thailand F5 | 2018/09/30 02:30 | Maxence Broville v Phongsapak Kerdlaphee | 3-6,6-3,4-6 |
| ITF Thailand F4 | 2018/09/24 02:30 | Felix Corwin v Phongsapak Kerdlaphee | 6-2,6-4 |
| ITF Thailand F4 | 2018/09/23 04:00 | Phongsapak Kerdlaphee v Suthinan Tanthaseraneewat | 6-1,6-3 |
| ITF Thailand F4 | 2018/09/22 02:30 | Phongsapak Kerdlaphee v Ho-Gi Kang | 7-5,6-1 |
| ITF Thailand F3 | 2018/09/03 02:00 | Kittirat Kerdlaphee v Phongsapak Kerdlaphee | 7-5,6-4 |
| ITF Thailand F3 | 2018/09/02 02:00 | Phongsapak Kerdlaphee v Tsung-Hao Huang | 6-3,6-2 |
| ITF Thailand F7 | 2018/10/28 03:00 | Krittin Koaykul v Siddharth Vishwakarma | 2-6,5-7 |
| ITF Thailand F7 | 2018/10/27 02:00 | Michael Mathayomchand v Krittin Koaykul | 3-6,5-7 |
| ITF Thailand F6 | 2018/10/10 03:00 | Krittin Koaykul v Matic Spec | 0-6,1-6 |
| ITF Thailand F6 | 2018/10/08 03:30 | Yuttana Charoenphon v Krittin Koaykul | 6-7,2-6 |
| ITF Thailand F5 | 2018/10/02 05:05 | Kento Takeuchi v Krittin Koaykul | 6-2,6-3 |
| ITF Thailand F4 | 2018/09/25 04:10 | Krittin Koaykul v Pruchya Isarow | 1-6,2-6 |
| ITF Thailand F3 | 2018/09/05 02:00 | Krittin Koaykul v Kento Takeuchi | 4-6,6-7 |
| ITF Thailand F3 | 2018/09/02 02:00 | Sam Ryan Ziegann v Krittin Koaykul | 6-7,1-6 |